#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a,b,c,sum=0; cin>>a>>b>>c; if((a%4==0)&&(a%100!=0)||(a%400==0)){ sum=sum+1; } if((b%4==0)&&(b%100!=0)||(b%400==0)){ sum=sum+1; } if((c%4==0)&&(c%100!=0)||(c%400==0)){ sum=sum+1; } cout<<sum; return 0; }